Advice on replacing FacebookAgent (REST) authentication with Facebook Connect SDK on iOS

I inherited an iOS app that is currently using an authentication library called FacebookAgent. If unaware, this uses the soon-to-be-or-is-now-deprecated Facebook REST authentication system.

I'll be replacing this with the Facebook Connect SDK. Does anyone know if it's possible t开发者_如何学Co easily switch from the FacebookAgent REST authentication system to the Facebook Connect SDK without having to back out all of the FacebookAgent methods?

Thanks in advance for any advice.